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J-GLOBAL ID：201401075256372248   Update date: Apr. 30, 2024

Oba Yojiro

Oba Yojiro
Affiliation and department：
Toyohashi University of Technology Department of Mechanical Engineering

About Toyohashi University of Technology Department of Mechanical Engineering


Research field  (1)： Nanomaterials
Research theme for competitive and other funds  (15)：
  • 2024 - 2028 高効率電力変換のための新たなナノ構造軟磁性発現機構の解明
  • 2023 - 2027 中性子・ミュオン協奏オペランド測定による全固体蓄電池内のイオン拡散挙動の解明
  • 2023 - 2026 中性子小角散乱の磁化応答解析による水素可視化に基づく鉄鋼材料の水素脆化の解明
  • 2019 - 2023 オペランド中性子散乱による全固体蓄電池のバルク・固-固界面イオン流れの可視化
  • 2018 - 2020 量子ビーム小角散乱法とレオメータの組み合わせによる高せん断応力場潤滑油の構造解析
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Papers (84)：
  • Koji Kaneko, Chihiro Tabata, Masato Hagihala, Hiroki Yamauchi, Yojiro Oba, Takayuki Kumada, Masato Kubota, Yuki Kojima, Nozomi Nabatame, Miki Sasaki, et al. New Standard for Low Temperature Sample Environment at JAEA/JRR-3. JPS Conference Proceedings. 2024. 41. 011015
  • Yojiro Oba, Wataru Nakamura, Akihiro Takahashi, Masakazu Kobayashi, Hiromi Miura. Grain-refinement by MDFing under Decreasing-Temperature Conditions Followed by Room-Temperature MDFing of AZX611Mg Alloy and Change in Mechanical Properties. Journal of the Japan Institute of Metals and Materials. 2024. accepted
  • H. Sasaki, S. Yamazaki, Y. Oba, M. Onuma. Analysis of Superconductors and Metals Using Small Angle X-ray and Neutron Scattering. 2024. 143. 16
  • T. Saito, H. Yu, Z. Gao, K. Inoue, S. Kondo, R. Kasada, Y. Nagai, Y. Oba, K. Hiroi. Multiscale Observation of Nano-Oxide Particles in Oxide-Dispersion-Strengthened Cu alloys. Journal of Alloys and Compounds. 2024. 983. 173852
  • Y. Sekine, T. Nankawa, K. Hiroi, Y. Oba, Y. Nagakawa, T. Sugita, Y. Shibayama, T. Ikeda-Fukazawa. Nanocellulose hydrogels formed via crystalline transformation from cellulose I to II and subsequent freeze cross-linking reaction. Carbohydrate Polymers. 2024. 327. 121538
ｍore...
MISC (124)：
  • Y. Oba, H. Sasaki. Characterization of Precipitates in Cu alloy using Small-Angle X-ray Scattering. KURNS PROGRESS REPORT 2022. 2023. 101
  • Y. Oba, M. Hino, R. Motokawa, N. Adachi, Y. Todaka, R. Inoue, M. Sugiyama. Characterization of Additive Aggregation in Lubricant using Small-Angle X-ray Scattering. KURNS Progress Report 2021. 2022. 110
  • K. Mori, R. Okumura, H. Yoshino, H. Nakamura, S. Sato, K. Iwase, Y. Oba, Y. Kaneko. Current Status of Versatile Compact Neutron Diffractometer (VCND) on the B-3 Beam Port of KUR, 2020. KURNS Progress Report 2020. 2021. 88
  • Y. Oba, K. Mori, M. Hino, R. Okumura. Magnetic Scattering Contribution in Iron Characterized by Neutron Diffraction. KURNS Progress Report 2019. 2020. 151
  • Y. Oba, M. Hino, R. Motokawa, N. Adachi, Y. Todaka, R. Inoue, M. Sugiyama. Characterization of Additive in Lubricant using Small-Angle X-ray Scattering. KURNS Progress Report 2019. 2020. 148
ｍore...
Patents (1)：
  • 燃料電池用電極
Lectures and oral presentations  (221)：
  • Microstructures and Mechanical Properties of AZ80Mg Alloys Fabricated by Multi-Directional Forgings (at Room Temperature or under Decreasing Temperature Conditions) and Deformation-Restricted Forging
    (Inter. Conf. on Plasticity, Damage, and Fracture 2024 (ICPDF 2024) 2024)
  • Microstructure and specific properties of heterogeneous-nanostructured stainless steel and copper alloys fabricated by heavy cold rolling
    (PRICM11 2023)
  • Microstructural characterization using advanced small-angle scattering
    (PRICM11 2023)
  • Observation of impact deformation and fracture on severe plastic deformed alloys by using synchrotron radiation
    (Materials Science & Technology (MS&T23) 2023)
  • Effects of pass strains of multi-directional forging and additive cold rolling of pure Ti on the microstructural evolution and mechanical properties
    (Materials Science & Technology (MS&T23) 2023)
ｍore...
Work history (6)：
  • 2023/04 - 現在 Toyohashi University of Technology Department of Mechanical Engineering
  • - 現在 理化学研究所 客員研究員
  • 2017/04 - 2023/03 Japan Atomic Energy Agency
  • 2020/03 - 2021/03 University of Luxembourg visiting researcher
  • 2012/04 - 2017/03 Kyoto University
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Committee career (13)：
  • 2024/04 - 現在 日本金属学会・日本鉄鋼協会 東海支部 理事
  • 2019/02 - 2025/01 京都大学複合原子力科学研究所 原子炉利用研究者グループ 幹事
  • 2024/01 - 2024/03 京都大学複合原子力科学研究所 「もんじゅ」サイト新試験研究炉に係る実験装置検討ワ ーキンググループ委員
  • 2023/07 - 2024/03 中性子産業利用推進協議会 金属材料研究会幹事
  • 2022/03 - 2024/02 Iron and Steel Institute of Japan forum: Unveiling microstructural evolution mechanism using quantum beam chair person
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Awards (5)：
  • 2023/11 - 第57回論文賞 Characterization of δNi2Si precipitates in Cu-Ni-Si alloy by small angle x-ray scattering, small angle neutron scattering and atom probe
  • 2021 - 日本銅学会 第55回論文賞 X 線・中性子小角散乱法及び3次元アトムプローブ法によるCu-Ni-Si合金中の析出相の解析
  • 2019/11 - 日本中性子科学会 日本中性子科学会奨励賞
  • 2018/12 - 日本中性子科学会 波紋President Choice 中性子透過率スペクトル測定を利用した新しい中性子散乱実験
  • 2012/01 - Award for Encouragement of Research of Materials Science Characterization of Morphology and Chemical Composition of Inclusion in Steel Using Small-Angle X-ray and Neutron Scattering
Association Membership(s) (3)：
THE JAPANESE SOCIETY FOR NEUTRON SCIENCE ,  THE IRON AND STEEL INSTITUTE OF JAPAN ,  THE JAPAN INSTITUTE OF METALS AND MATERIALS
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